How to merge multiple dimension array cakephp with two key

Question

I just using function query() of cakePhp. The query will return array something like :

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '11'
        ),
        'cate_item' => array(
            'price' => '150.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '2'
        )
    ),
    (int) 3 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    )
)

Now, I want to check if array have the same cate.date and item.code will merge array (in this case is elements 0,1 of my array). Output something like :

array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '11',
                'price' => '150.000'
            ),
            (int) 1 => array(
                'rel_data_category' => '10',
                'price' => '250.000'
            )
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '10'
                'price' => '250.000'
            )
        ),
        'item' => array(
            'code' => '2'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            (int) 0 => array (
                'rel_data_category' => '10'
                'price' => '250.000'
            )
        ),
        'item' => array(
            'code' => '1'
        )
    )
)

Please help!

Answer 1

To do that

First declare a variable which later you will store new merge array data

$filter_data = array();

then loop your existing array

foreach($items as $item) {

    // do somethind

then create a function which check if item which same date and code not yet exist in the new array

    // checker
   if (!checkExist($item['cate']['date'], $item['item']['code'])) {

Create a variable for temporary data that will append to the new array later

    $data = array(
       'cate' => $item['cate'],
       'item' => $item['item']
     );

Then create loop again which will append all index item cate_detail and cate_item who have the same date and code from the parent loop

   }
}

So your code would be like this

$items = array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '11'
        ),
        'cate_item' => array(
            'price' => '150.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '2'
        )
    ),
    (int) 3 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    )
);

$filter_data = array();

foreach($items as $item) {
   if (!checkExist($item['cate']['date'], $item['item']['code'])) {
     $data = array(
       'cate' => $item['cate'],
       'item' => $item['item']
     );
     foreach($items as $detail) {
       if ($detail['cate']['date'] == $item['cate']['date'] &&
           $detail['item']['code'] == $item['item']['code']) {
         $data['cate_detail'][] = array(
           'rel_data_category' => $detail['cate_detail']['rel_data_category'],
           'price' => $detail['cate_item']['price']
         ); 
       }
     }
     $filter_data[] = $data;
   }
}

function checkExist($date, $code){
   global $filter_data;
   foreach($filter_data as $data) {
     if ($data['cate']['date'] == $date && 
         $data['item']['code'] == $code) {
       return true;
     }
   }
   return false;
}

pr($filter_data);

OR

$items = array(
    (int) 0 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '11'
        ),
        'cate_item' => array(
            'price' => '150.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 1 => array(
        'cate' => array(
            'date' => '2016-12-05',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    ),
    (int) 2 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '2'
        )
    ),
    (int) 3 => array(
        'cate' => array(
            'date' => '2016-12-06',
        ),
        'cate_detail' => array(
            'rel_data_category' => '10'
        ),
        'cate_item' => array(
            'price' => '250.000'
        ),
        'item' => array(
            'code' => '1'
        )
    )
);

$filter_data = array();
$exists = array();

foreach($items as $item) {
    $index_key = $item['cate']['date'].'-'.$item['item']['code'];
    if (!isset($exists[$index_key])) {
        $exists[$index_key] = 1;
        $data = array(
            'cate' => $item['cate'],
            'item' => $item['item'],
            'cate_detail' => getItems($item['cate']['date'], $item['item']['code'])
        );
       $filter_data[] = $data;
   }
}

function getItems($date, $code) {
    global $items;
    $data = array();
    foreach($items as $detail) {
       if ($detail['cate']['date'] == $date && $detail['item']['code'] == $code) {
          $data[] = array(
           'rel_data_category' => $detail['cate_detail']['rel_data_category'],
           'price' => $detail['cate_item']['price']
         ); 
       }
    }
    return $data;
}

pr($filter_data);